#include <iostream>
using namespace std;
int main(){
	// C++中基础数据类型的hashCode
	hash<int> hash_int;
	hash<float> hash_f;
	hash<double> hash_d;
	hash<string> hash_s;
	int a = 60;
	cout<< hash_int(a) <<endl;
	
	int b = -60;
	cout<< hash_int(b) <<endl;
	
	float c = 3.1415926;
	cout << hash_f(c) << endl;
	
	double c2 = 3.1415926;
	cout << hash_d(c2) << endl;
	
	string s = "usts";
	cout << hash_s(s) << endl;
	
	string s2 = "USTS";
	cout << hash_s(s2) << endl;
	
	
	return 0;
}
